fluke wrote:

fanatico wrote:

At a certain conference, 72% of the attendees registered at least

two weeks in advance and paid their conference fee in full. If

10% of the attendees who paid their conference fee in full did

not register at least two weeks in advance, what percent of

conference attendees registered at least two weeks in

advance?

(A) 18.0%

(B) 62.0%

(C) 79.2%

(D) 80.0%

(E) 82.0%

Looks like this question is not complete. The required percent cannot be determined with given data. The answer can range from 72% to 92%. Could you please confirm?

Exactly

we dont have any bifurcation of people who did not pay the full fee (how many registered in 2 week advance and how many did not)

without knowing that we can't reach the desired answer that how many registered in 2 weeks advance

it could be 72% +0% (minimum) to 72% + 20% (maximum)

please clarify

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